EP 1389790 B1 20051102 - Illumination structure for pushbutton and electronic device with pushbutton having illumination structure
Title (en)
Illumination structure for pushbutton and electronic device with pushbutton having illumination structure
Title (de)
Beleuchtungseinrichtung für einen Tastschalter und elektronisches Gerät mit solcher Beleuchtungseinrichtung
Title (fr)
Structure d'illumination pour un bouton poussoir et appareil électronique avec cette structure
Publication
Application
Priority
JP 2002234636 A 20020812
Abstract (en)
[origin: EP1389790A1] A pushbutton switch mechanism has board 28 incorporating an electronic circuit thereon, metal sheet contact 26 disposed on board 28, a light-transmissive pushbutton disposed in an opening defined in a casing of the electronic device for being pressed from outside, the light-transmissive pushbutton having outer key top 22 and presser 25 formed with rubber sheet 24 for contacting metal sheet contact 26, and light-emitting elements 27 disposed on board 28 around presser 25 for applying light to a side surface of the presser 25. Presser 25 has a conical shape having an upper surface as a bottom surface substantially aligned with a lower surface of key top 22 and a vertex for contacting metal sheet contact 26. Light emitted from light-emitting elements 27 is applied to the entire side surface of presser 25. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 9/16 (2006.01); H01H 13/02 (2006.01); H01H 13/14 (2006.01); H01H 13/702 (2006.01); H04M 1/22 (2006.01)
CPC (source: EP US)
H01H 13/702 (2013.01 - EP US); H01H 2219/062 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1389790 A1 20040218; EP 1389790 B1 20051102; CN 1259679 C 20060614; CN 1484264 A 20040324; DE 60302115 D1 20051208; DE 60302115 T2 20060713; HK 1064506 A1 20050128; JP 2004079232 A 20040311; US 2004114341 A1 20040617; US 6997572 B2 20060214
DOCDB simple family (application)
EP 03018060 A 20030807; CN 03153321 A 20030808; DE 60302115 T 20030807; HK 04107172 A 20040917; JP 2002234636 A 20020812; US 62845703 A 20030729